Engineering

There are so many companies to work with. TCS, Infosys, CTS etc. You can go with any of these.

Getting admission with these scores are really very difficult for you. Maybe, some colleges can give you admission through donation, management quota. Call in some colleges and ask them, if they can give admission through management quota.

Yes, you can get Government College. There are various phases of counseling, maybe in first counseling you may not get, but in later counseling, you can get. Keep trying with the various phases of counseling.

B.Tech opens the doors for various types of Engineering, like Mechanical engineering, Computer Science engineering, Chemical engineering, Electronics and Communication engineering etc. B.Tech is nothing, but a graduation in specific engineering domain. Now days, graduation is must for jobs. B.Tech/B

Both the courses are good. If you want to be Doctor, I suggest you to go for BAMS. As you have not specified any particular field of Engineering, It is difficult to answer.

https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor
Go to the college predictor link I am sharing here to know about the college you can get. Good luck.

Yes, you can do that, provided you have completed class 12th with PCM 50% marks, because this is the minimum educational requirement for pursuing CPL Training.
Your diploma shall be an additional qualification, although it shall not give you any advantage.

https://www.shiksha.com/b-tech/resources/comedk-college-predictor
Go to the college predictor link to know about the college you can get. Good luck.

https://www.shiksha.com/university/doon-university-Dehradun-37081
Go to the link. Here you will get all information about course as well as university and fees too. Good luck.